[trikes] Motor drive through the gears.

[Ian Sims]

Yes, Giles, I've found putting the motor through the gears is more
efficient, and gives you a much wider speed range.

However there is a temptation to use the extra power to increase
one's top speed, as well as having assistance with the hills, and
this conciderably shortens one's range! Simply because the power
requirement varies as the CUBE of the speed.

For details of my set up, please see :-

http://www.greenspeed.com.au/Newsletter11.htm

Regards, Ian

Ian Sims, Director
Greenspeed Pty., Ltd.,
69 Mountain Gate Drive,
Ferntree Gully VIC 3156
AUSTRALIA
Phone +61 3 9758 5541 Fax +61 3 9752 4115
Email ian at greenspeed.com.au
Web www.greenspeed.com.au


Message: 3
Date: Mon, 15 Jun 2009 18:57:44 +1000
From: Giles Puckett <gilesp at iinet.net.au>
Subject: Re: [trikes] DELTA VS TADPOLE for speed
To: B D <be_dal at yahoo.se>, Trikes List <trikes at bikelist.org>
Message-ID: <4A360D08.2080500 at iinet.net.au>
Content-Type: text/plain; charset="ISO-8859-1"; format=flowed

Have people tried one of the motors that drives through the gears (like 
Cyclone, or the Elation here is Australia)? Seems that would take a lot 
of the essential compromise out of using a hub motor, esp. on a vehicle 
that naturally used a wider speed range than a conventional bicycle. My 
own experience with hub motors, and that of others I've talked to, is 
that they're almost never in the right gear - they're either overrunning 
or struggling.

G.